Distinsuish between :
(a) Grazzing food chain detritus food chain (b) Production and decomposition.

Explanation

(a) Grazing food chain : *in this food chain energy is derived from the sun.
* It began with producers present at the first trophic level. The plant biomass is then eaten by herbivoes , which in the true are comsumed by a variety of carnivores.
* The food chain is usually large.
detritus food chain:
* In this food chain, energy comes form organic matter ( or detritus ) generated in trophic levels of the grazing food chain .
* It beings with detritus such as dead bodies of animals of fallen leaves which are then eaten by decomposers pr detritivores . These detritivaroes are in turn consumed by the predators.
* It is usually smaller as compared to the grazing food chain .
(b) Production:
* It is the rate of producing organic matter (food) by producers.
*It depends on the photosynthetic capacity of the producers.
* Sunlight is required by the plants for primary production.
Decompositon:
* It is the process of breaking down of complex organic matter or biomass from the body of dead plants and animals with the help of decomposers into organic raw material such as `CH_(2)`,`H_(2)O,` and other nutrietns.
* It occurs with the help of decomposers.
*Sunlight is not required for decomposition by decomposers.